Move unittest tests underneath it in /pkg

tests/lib/unittest/test_utils.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-int errorCount;
-String errorString;
-var _testHandler = null;
-
-class MyFailureHandler extends DefaultFailureHandler {
-  void fail(String reason) {
-    ++errorCount;
-    errorString = reason;
-  }
-}
-
-void initUtils() {
-  if (_testHandler == null) {
-    _testHandler = new MyFailureHandler();
-  }
-}
-
-void shouldFail(value, Matcher matcher, expected) {
-  configureExpectFailureHandler(_testHandler);
-  errorCount = 0;
-  errorString = '';
-  expect(value, matcher);
-  configureExpectFailureHandler(null);
-  expect(errorCount, equals(1));
-  if (expected is String) {
-    expect(errorString, equalsIgnoringWhitespace(expected));
-  } else {
-   expect(errorString, expected);
-  }
-}
-
-void shouldPass(value, Matcher matcher) {
-  configureExpectFailureHandler(_testHandler);
-  errorCount = 0;
-  errorString = '';
-  expect(value, matcher);
-  configureExpectFailureHandler(null);
-  expect(errorCount, equals(0));
-}
-